Locomotive-engine.



11 s. 2 12mm iQOOOMOTIVE ENGINE.

APPLIGATIOH FILED JULY 27. 1909, gqj gglg, Patgnted Jan. 11,1919.

' s sums-41mm 1.

WITNESQES LUC-OMOTWE ENGINE.

AfiLIGAT v 105 TILED JULY 27, 1009. 945;;334; Patentmi Jan, 11 1910,

5 HEBREW-45KB 2.

INVENTQR L1 gm.

H S. VINCENT.

LOGOMOTIVE ENGINE.

mrmomzozz rum) JULY 21, 1909.

9ai5ented Jan. 11,1910.

R O T N E V m H. S. VINCENT.

COMOTIYE ENGINE.

APPLICATION rum) in! 21. woe.

Patented Jan 11, 1936.

5 SHBE18SHBET 4..

H. s. VINCENT. ocomonvs ENGINE. APPLIUATION 1ILED JULY 27. 1909,

Patented Jamil, 1910.

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HARRY S. VINCENT, OF PiIDGEWOOD, 'NEW JERSEY,

LOCOMOTIVEJENGINE.

gl gglp Specification of-Letters Patent. Patented Jami. 11,1919.

Application filed July 2 1905. Serial No. 509,856.

To all whom iii may concern: on the line so of Fig. 4:; Fig. 6, aview," Be it known that I, HARRY S. VINCENT, partly in elevation and partly invertical of Ridgewood, in the county of Bergen and transverse section on the line 3 y' ofFign'; State of New Jersey, have invented a certain and, Fig. 7, a vertical central section. 5 new and useful Improvement in Locomotive 1 My invention is herein exemplifiedfas apcoj Enginesof which improvement the follow plied in a three cylinder compound locomo in is aspecification. tire having two or more drivingaxle's" and y invention relates to locomotive engines a four wheel leading truck. The two 'out-' of the three cylinder type, in which, under side low pressure cylinders, 12'1", with their normal operation, there is an approximately valve chests, 1, 1 arecast integral-with ch equal di'visionof power between the three pair of cylinder saddles, 1 1, the bottom cylinders, and While more particularly deportions of which are secured toth e side signed for application in engines of the frame members, 13, of the engine, and upon compound or stage expansion type, embodies which the smoke box, 14?, of the boiler, 1

5 features of advantage which are desirably .is supported in the usual manner. Thelow applicable in simple or single expansion pressure pistons, 15, are secured uponpis en ines. ton rods, 15, the outer ends of which are lhe object of my invention is to provide .fixed to cross heads, 13, sliding on. guides,

a three cylinder locomotive engine in which 1.7 The cross heads are coupled by; con- 2 the high pressure cylinder shall be so disnecting rods and crank pins (-shownonly:

posed that the main rod by which its piston diagrammatically in Fig; 2%) to the second is coupled to the front driving axle shall be pair of driving 4 axles. The construction of maximum length Without unduly lengththus far described is similar to that which,

ening' the Wheel base of the engine; the in connection with simple cylinders,.ischar- 25 crank cheeks shall be so shaped and pro acteri'stic of the present standard locomo- I portioned as to integrally counterbalance tives having four wheeled leading trucks;

the reciprocatin -elements of the central cyl- In the practice ofmyinvention, 1 pro inder, this avoi inn the eccentric strains revide a high pressure cylinder, 1, which is sultant upon the-placing, of this balance in cast integral with its valve chest, 1, and is 30 the drivino' Wheels; the steam passages to located centrally between the side-frame and from t e low pressure cylinders shall be members, 13. In order to admit of the use so disposed that said cylinders shall heperof a main rod-of sufficient lengtln with a fectly similar and interchangeable; and a' minimum length of wheel base, thehigh starting mechanism shall be provided which pressure cylinder is located in advance of 35 will .not require independent manipulation the cylinder saddles, between the saio'e and by the engineer, but be so'connccted to the the butter beam, 13, and 'is secured'toforordinary reversing gearastobe automaticin ward extensions of the side frame. members its action. by. bolts passing-through lateral flanges, 1

'The improvement claimed is hereinafter on the cylinder. The piston, 15, of the'high i.

0 fully setforth. pressure cylinder, is secured upon a, piston In the accompanying drawings: Figure 1; rod, 15, the rear end of which is fixed' to a 1s a View, in elevation, ofithe forward porcross head, 16, sliding on guides,'l7,-secured tion of a. locomotive engine, illustrating-an to the bottoms of the-low pressure cylinder application of my invention; Fig.- 2, a plan saddles, l. The cross head, 16,,is coupled? 45 or top view of the same, with the" boiler rethrong-ha main rod, in the ordinary -n anner, 1

moved Fig. 2, a diagrammatic side view, to a crank pin, 18% secured to crank arm's, illustrating the angular CllS JDSltlQll of the 18, formed ntegral with, or: fixed upon, the

crank pins; Fig. 3, a vertica central section front driving axle, 21. The crankarrns, .18, through the right hand low pressure cylinare preferably set at an angle of 120 degrees 50 der and its valve chest, and a partial similar with eachof the crank pins to which'the section through the "central high pressure cross heads of the low pressure cylinders are cylinder and its valve chest; Fig. 4, a'plan coupled, as illustrated diagrammatically in view, partly in section, of the cylinders-with Fig.2, and thecrank pins being thusfrlathe low pressure cylinder bolting flange retively disposed, three impulses are impart 5*]Il0VQd'; Fig. 5, a vertical transverse section, ed to the driving axles each revolution, 1 I

instead of two as in two or four cylinder engines, thereby effecting a substantial uniformity of turning movement.

The valve chests of the several cylinders,

5 which are located above the same and cast integral therewith, are connected with their respective cylinders by the usual induction and eduction ports and passages, and each of them is fitted with a suitable steam distribution valve. The distribution valve, 19, of the high pressure cylinder, is connected with its operating mechanism by a valve stem, 19, passing through a central opening in the cylinder saddles, 1, and in order to afford easy access to the packing of the valve stem, the latter is surrounded by a heavy casing, 19", extending from a crotch pipe, 20, at the rear of the high pressure cylinder, to the rear of the cylinder saddles, I at or 20 near which it is fitted with a suitable packing gland, 19.

The engine truck center casting, 21 is secured to forward extensions, l of the cylinder saddles, which extensions are suit- 25. ably spaced to provide clearance for the high pressure cylinder cross head, 16, and guides, 17, asshown in Fig. 5.

For the purpose of balancing the reciprocating membersconnected with the high pressure cylinder, counterbalances, 18*, are formed integral with the crank arms,18, and extend in line therewith on the opposite side of the axle, 21, the counterbalances being in substantially the same plane as the reciproeating-members.

In the operation of the locomotive, live steam from the boiler issupplied to the high pressure valve chest, through the steam pipe, 22, and external elbow, 22 and enters the space between the end pistons of the distribution valve, 19. After having been admitted to the high pressure cylinder and actuating the piston 15, thereof, it passes out through the induction and eduction passages,23,23,into the crotch pipe, 20, thence through lateral conduits, 24:, which are detachably connected thereto, into the passages, 25, in the low pressure'cylinder saddles, and thence through the passages, 26,

and pipes, 27, into the receiver, 28. The

passages, 25, communicate,-at their ends, di-

rectly with the low pressure valve chests,

permitting steam to pass directly from the igh pressure to the low pressurefcylinders, or to by-pass to the receiver. The exhaust steam from the low pressure cylinders is discharged to the atmosphere through the exhaust passages, 29, and exhaust pipe, 30.

Each ofthe low pressure cylinders is provided with a safety valve, 39, which communicates with the receiver, 28.

It will be seen that the ports and passages of the two lcw pressure cylinders, 1 and 1",

are similar in both, and therefore that the two cylinders are interchangeable and may be cast from the same pattern. It will also be obvious that the high pressure cylinder can. be removed and replaced as desired, without interference with the low pressure cylinders. I

I claim as my invention and desire to secure by Letters Patent:

1. In a three cylinder locomotive engine, the combination of side frame members, two outer cylinders having abutting and connected half saddles and secured to the side frame members, a central cylinder secured to the side frame members forward of the outer cylinders, a valve inclosed in a chest above, and effecting the distribution-functions of, the central cylinder, a casing extending from the distribution valve chest through the half saddles and inclosing the stem of the distribution valve, and a packing gland closing said casing ad acent to the rear of the half 35 saddles. w

. 2. In a'three cylinder locomotive engine, the combination of two outer cylinders, a central cylinder located forward of said outer cylinders, a forward drivingaxle having a counterbalanced crank, a piston in the central cylinder coupled to the pin of said crank, and pistons in the outer cylinders coupled to crank pins on another driving axle at angles of approximately 120 degrees to the crank pin of the central cylinder.

3. In a three cylinder locomotive engine, the combination of side frame members, two similar and interchangeable outer low pres sure cylinders having abutting half saddles and secured to the side frame members, a central high pressure cylinder secured to the side frame members forward of the low pressure cylinders, and detachable connectionsbetween the valve chest of the high pressure cylinder and the valve chests of the low pressure cylinders.

4. In a three cylinder locomotive engine, the combination of side frame members, two similar and interchangeable outer 'low pressure cylinders having abutting half saddles and secured to the side frame members, a. central high pressure cylinder secured to the side frame members forward of-tli'e low pressure cylinders, a transverse crotch pipe located in front ofthe half saddles and communicating with the distribution valve chest of the high pressure cylinder, and detachable lateral conduits connecting said crotch pipe with passages in the half saddles leading to the low pressure cylinders.

HARRY S. VINCENT. 4 

